What is an oligopoly?

A oligopoly It consists of the production or sale of a product by a few merchants. Generally, these traders are related to each other, so more than competition, they tend to set general marketing rules, prices, production goals and ceilings, etc.
These practices slow down trade and increase prices, often disproportionately, since in the absence of competition, traders or industrialists set prices at will.
The oligopoly term It is also applied in other areas, such as politics, where it is considered oligopoly when two or more parties of similar ideologies alternate in the main positions, constantly carrying the same line of government.
It can also exist state oligopolies, which is the case when a product or service is controlled in its production or marketing by companies belonging to the government, in these cases, generally to control their sale and distribution, as well as to guarantee low prices.
exist oligopolies especially among communications and telecommunications companies, since being a sector that requires specialized infrastructure, few compete, so it is easier to locate in similar commercial conditions planned with other service providers, in order to achieve the ends commercial.